Radical Addition of Perfluoroalkyl Iodides to Alkenes and Alkynes Initiated by Sodium Dithionite in an Aqueous Solution in the Presence of a Novel Fluorosurfactant
fluoroalkylation to occur in the water without adding organic solvent. The addition of perfluoroalkyliodides with olefins and alkynes under the initiation of Na2S2O4 in water in the presence of the fluorosurfactant gave the corresponding adducts in good to excellent yields. The fluorosurfactant was suitable for a radical addition process.
制备并表征了一种新型的氟化阴离子表面活性剂Cl(CF 2)6 O(CF 2)2 SO 3 N(C 2 H 5)4。含氟表面活性剂的应用使氟烷基化在水中发生而无需添加有机溶剂。在含氟表面活性剂的存在下,在水中在Na 2 S 2 O 4的引发下,将全氟烷基碘化物与烯烃和炔烃加成,得到相应的加合物,收率良好或优异。含氟表面活性剂适用于自由基加成过程。
Use of Nitrogen‐Doped Carbon Nanodots for the Photocatalytic Fluoroalkylation of Organic Compounds
perfluoroalkylation of organic compounds is reported. This operationally simple approach occurs under mild conditions producing valuable new C-C bonds. The chemistry is driven by the ability of NCNDs to directly reach an electronically excited state upon light absorption, thereby successively triggering the formation of reactive radical species from simple perfluoroalkyliodides. Preliminary mechanistic
报道了使用富含胺的 N 掺杂碳纳米点 (NCND) 进行有机化合物的光化学自由基全氟烷基化。这种操作简单的方法发生在温和的条件下,产生有价值的新 CC 债券。这种化学反应是由 NCND 在吸收光后直接达到电子激发态的能力驱动的,从而连续触发从简单的全氟烷基碘化物形成反应性自由基物种。还报告了初步的机理研究。
Titanium-catalyzed addition of perfluoroalkyl iodides to alkenes
作者:Charles R. Davis、Donald J. Burton、Zhen-Yu Yang
DOI:10.1016/0022-1139(94)03102-6
日期:1995.1
Perfluoroalkyl iodides, in the presence of a catalytic amount of Ti0 generated in situ, add to alkenes in dimethoxyethane solvent to afford 1-(n-perfluoroalkyl)-2-iodoalkanes in moderate to good yields. 1-Alkenes, 1-alkynes and alkenes containing bromo or ester substituents gave yields of the 1:1 addition adducts with n-perfluoroalkyl iodides. 1-Alkenes containing ketone or alcohol groups gave low
The reaction of polyfluoroalkyl iodides with alkenes or 4-pentenoic acid promoted by sodium bisulfite or sodiumsulfite in DMF aqueous solution was realized. The reaction of alkenes gave corresponding adducts, while γ-lactones were obtained in the case of 4-pentenoic acid in good yields.
Reaction of perfluoroalkyl iodides with alkenes initiated by organophosphine and related compounds
作者:Wei-Yuan Huang、Han-Zhong Zhang
DOI:10.1016/s0022-1139(00)82185-5
日期:1990.10
Perfluoroalkyliodides reacted with alkenes in acetonitrile solution containing catalytic amounts of an organophosphine under mild conditions to give the corresponding adducts in moderate to high yields. Addition of hydroquinone to the reaction mixture suppressed the reaction. Diallyl ether reacted to afford tetrahydrofuran derivatives. These findings indicated that the reaction involved a free radical